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introduce separate print functions for 'simple' and 'pretty' variands of

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unwinding
This commit is contained in:
nnosov
2020-04-05 13:33:19 +04:00
parent 3adc8eb1ef
commit e2e7535149
6 changed files with 124 additions and 125 deletions
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src/libpst.c
+12 -52
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@@ -11,12 +11,17 @@
#include "utils/allocator.h"
#include "dwarf/dwarf_handler.h"
#include "dwarf/dwarf_function.h"
// allocate and initialize libpst library
pst_handler* pst_lib_init(ucontext_t* hctx)
pst_handler* pst_lib_init(ucontext_t* hctx, void* buff, uint32_t size)
{
// global
pst_alloc_init(&allocator);
if(!buff || !size) {
pst_alloc_init(&allocator);
} else {
pst_alloc_init_custom(&allocator, buff, size);
}
pst_log_init_console(&logger);
pst_new(pst_handler, handler, hctx);
@@ -33,59 +38,14 @@ void pst_lib_fini(pst_handler* h)
pst_alloc_fini(&allocator);
}
// write stack trace information to provided file descriptor
int pst_unwind_simple_fd(pst_handler* h, FILE* fd)
// save stack trace information to provided buffer in RAM
int pst_unwind_simple(pst_handler* h)
{
int ret = pst_handler_unwind(h);
if(ret) {
fwrite(h->ctx.buff, 1, strlen(h->ctx.buff), fd);
return 0;
}
return -1;
return pst_handler_unwind(h);
}
// save stack trace information to provided buffer in RAM
int pst_unwind_simple(pst_handler* h, char* buff, uint32_t buff_size)
int pst_unwind_pretty(pst_handler* h)
{
int ret = pst_handler_unwind(h);
if(ret) {
uint32_t cnt = buff_size < sizeof(h->ctx.buff) ? buff_size : sizeof(h->ctx.buff);
memcpy(buff, h->ctx.buff, cnt - 2);
buff[cnt - 1] = 0;
return 0;
}
return -1;
}
// write stack trace information to provided file descriptor
int pst_unwind_pretty_fd(pst_handler* h, FILE* fd)
{
int ret = pst_handler_handle_dwarf(h);
if(ret) {
pst_handler_print_dwarf(h);
fwrite(h->ctx.buff, 1, strlen(h->ctx.buff), fd);
return 0;
}
return -1;
}
// save stack trace information to provided buffer in RAM
int pst_unwind_pretty(pst_handler* h, char* buff, uint32_t buff_size)
{
int ret = pst_handler_handle_dwarf(h);
if(ret) {
pst_handler_print_dwarf(h);
uint32_t cnt = buff_size < sizeof(h->ctx.buff) ? buff_size : sizeof(h->ctx.buff);
memcpy(buff, h->ctx.buff, cnt - 2);
buff[cnt - 1] = 0;
return 0;
}
return -1;
return pst_handler_handle_dwarf(h);
}